I am specifically looking for Aiyoku no Eustia and Umineko: When They Cry
I use the android app quick novel which uses a bunch of sources
Nyaa is great, especially if you want full volumes. For weekly chapters you may also want to check https://w15.mangafreak.net
https://nyaa.si/ or https://sukebei.nyaa.si/ if +18
Thank, those are very helpful. Immediately found Aiyoku no eustia which I searched for so long.